"[Ninjawords] is a terrific app - pretty much exactly what I've always wanted in an iPhone dictionary, and, yes, with both a better user experience and better dictionary content than the other low-cost dictionaries in the App Store. But Ninjawords for iPhone suffers one humiliating flaw: it omits all the words deemed "objectionable" by Apple's App Store reviewers, despite the fact that Ninjawords carries a 17+ rating. Apple censored an English dictionary. A dictionary. A reference book. For words contained in all reasonable dictionaries. For words contained in dictionaries that are used every day in elementary school libraries and classrooms."